EP0649181B1 - Antenne du type pour dispositif radio portable, procédé de fabrication d'une telle antenne et dispositif radio portable comportant une telle antenne - Google Patents
Antenne du type pour dispositif radio portable, procédé de fabrication d'une telle antenne et dispositif radio portable comportant une telle antenne Download PDFInfo
- Publication number
- EP0649181B1 EP0649181B1 EP94402293A EP94402293A EP0649181B1 EP 0649181 B1 EP0649181 B1 EP 0649181B1 EP 94402293 A EP94402293 A EP 94402293A EP 94402293 A EP94402293 A EP 94402293A EP 0649181 B1 EP0649181 B1 EP 0649181B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- antenna
- helix
- whip
- helical antenna
- antenna according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical antennas
Definitions
- the present invention relates to an antenna of the type for portable radio device, and in particular for radiotelephone, as well as a method of manufacturing a such an antenna and that a portable radio device comprising such an antenna.
- This antenna is intended to transmit and receive radio signals.
- extractable strands currently known are generally substantially cylindrical, so they occupy too much volume in the housing radiotelephone.
- An object of the present invention is therefore to create an antenna for a portable radio device, efficiency is increased compared to antennas of this type currently known.
- Another object of the present invention is to achieve an antenna of the previous type which occupies a volume at inside the weakest wearable device possible.
- Another object of the present invention is to make a previous type antenna in which the strand extractable as independent as possible from the housing associated radio device.
- the present invention provides for this purpose an antenna of the type for portable radio device, according to claim 1.
- the antenna 1 comprises a helical antenna 2 5 and an extractable strand 3.
- the helical antenna 2 is partly housed in a recess 4 of a radiotelephone case 5, partially shown in Figure 1.
- the housing 5 consists of a insulating material, possibly metallized, and has a shape substantially parallelepiped.
- an antenna box 6 shown in broken lines whose base comes complete the recess 4 is used.
- the helical antenna 2 is fully inserted in the antenna housing 6, and exceeds about three-quarters of its height beyond the housing 5 of the radiotelephone.
- a mandrel support 7 made of an insulating material, substantially shaped cylindrical, on the outside surface of which has been deposited by a conventional metal deposition process, a propeller 8.
- the pitch of the propeller 8 is variable and decreases from its base 8B to its apex 8A.
- the width of the track electric constituting the propeller 8 is also variable and decreases from base 8B to top 8A.
- the electrical length of the propeller 8 is substantially equal to half the average wavelength use.
- the base 8B of the propeller 8, located at the base of the mandrel 7, is connected by means of a tongue interconnection 9 to a coaxial cable 10 supplying the helical antenna 2 located in the housing 5 of the radiotelephone and also connected to the transmitter / receiver of the latter (not shown).
- a positioning ring 11 (shown in broken lines) made of an insulating material, intended to center and maintain the helical antenna 2.
- the extractable strand 3 consists of a ribbon metal 12 with a very flat C-shaped section (see Figures 2 and 9), which we will describe as flat.
- the length electrical tape 12 is approximately equal to half of the average wavelength of use. Ribbon 12 is in additionally inserted into a covering 13 made of an insulating material intended to protect it.
- the extractable strand 3 comprises in addition a metal element 15 at its top 3A, this element 15 extending in a direction substantially orthogonal to the X axis of the propeller 8 (the ribbon 12 extends in a direction substantially parallel to the axis X).
- the element 15 is also inserted into the covering 13, and it may or may not be electrically connected to the ribbon 12. will explain later its usefulness.
- the extractable strand 3 can operate in two positions. In a first position (corresponding to that illustrated in Figure 1), it is almost entirely tucked into the antenna housing 6 and into a housing adapted 14 practiced in the housing 5 of the radiotelephone. In this position, antenna 1 is of the quarter wave type (i.e. it uses box 5 as a counterweight electric), and only the helical antenna 2 is then used to the transmission and reception of radio signals.
- the walls of housing 14 are covered with metal 141 to constitute a shield for extractable strand 3 in retracted position.
- the strand extractable 3 In a second position (not shown), the strand extractable 3 is fully deployed outside the antenna box 6. In this case there is a coupling capacitive between strand 3 and the top of the antenna helical 2, so the total height of the antenna 1 and its radiation resistance are increased. In this position of the extractable strand 3, the antenna 1 is still quarter wave type.
- the lower end 13B of the covering 13 is frustoconical with its largest base diameter oriented towards the top of the antenna.
- the end 13B abuts against the upper wall 14A of the housing 14.
- a essential characteristic of the present invention resides in the fact that we use a helical antenna whose the propeller is of variable pitch, this pitch decreasing when we approaches the top of the helical antenna, that is to say as the theoretical current in a conventional helical antenna (i.e. pitch and constant width) of the same dimensions decreases.
- this structure improves efficiency antenna 1 by ensuring better energy transfer, and on the other hand to increase the bandwidth of the antenna 1.
- this structure makes it possible to establish in the helical antenna 2 a distribution substantially trapezoidal current. This increases the resistance of radiation of the antenna, and therefore its efficiency and its bandwidth.
- the turns of propeller 8 are in contact with each other at vertex 8A, so that we get at vertex 8A a continuous metallic surface. So the top 8A is rendered capacitive, which provides the distribution substantially trapezoidal of the current and the advantages which result.
- the turns of the propeller 8 constitute a tight spiraling without however to be in contact with each other. The capacity thus realized is made selfic, which increases the apparent value.
- achieving a capacity at the top of the helical antenna 2 facilitates and improves the capacitive coupling and adaptation between the latter and the extractable strand 3.
- variable pitch propeller makes it possible to obtain optimal adaptation and coupling conditions in two operating modes (strand retracted or deployed).
- FIG. 6A very schematically, a helical antenna 62 with pitch and width constant, according to the prior art.
- Curve 63 in Figure 6B represents the intensity of the current i as a function of the height h along the X axis of the helical antenna 62.
- Figure 6C shows the diagram equivalent of antenna 62: this antenna is equivalent to one pure inductance 64.
- FIG. 7A very schematically, a helical antenna 72 which could be used instead of the helical antenna 2 of FIG. 1.
- the turns of antenna 72 are in contact with each other at top of the latter so as to constitute a continuous metallization.
- Curve 73 of Figure 78 which represents the intensity of the current i as a function of the height h along the X axis, shows that the distribution of current tends towards a trapezoidal shape.
- Figure 7C which represents the equivalent diagram of antenna 72, illustrates that the latter is equivalent to an inductance 74 in series with capacity 75.
- FIG. 8A very schematic, a helical antenna 82 which could be used in instead of the helical antenna 2 in FIG. 1.
- the turns of antenna 82 are in contact with each other others at the top of the latter so as to constitute continuous metallization, and tightened without being contact with each other immediately before to reach the top.
- the rest of the propeller is not constant.
- the curve 83 of FIG. 8B which represents the intensity of the current i as a function of the height h according to the X axis, shows that the current distribution tends to more and more (compared to Figure 7B) towards a form trapezoidal.
- Figure 8C which shows the diagram equivalent of antenna 82, illustrates that the latter equivalent to a first inductance 84 (corresponding to the part of the propeller with constant pitch), in series with a second inductor 85 (corresponding to the part of tight pitch propeller) and with capacity 86 (corresponding at the top of the propeller where the turns are in contact with each other with the others).
- the helical antenna 2 shown in Figure 1 illustrates the principles which have just been exposed. She is shown schematically in Figure 3A, and accompanied by FIG. 3B of the corresponding curve 33 representing the intensity of the current i as a function of the height according to the X axis. Note that the area between the curve 33 and the coordinate axes is further increased by relative to the surface corresponding to FIGS. 7B or 8B. This has the effect of increasing the radiation resistance and therefore the efficiency and bandwidth of the antenna.
- Figures 4 and 5 show the diagrams antenna 1 equivalents respectively when the strand extractable 3 is in the retracted position and when in deployed position.
- Increasing the height of antenna 1 by deploying the extractable strand 3 improves, in a known manner, the efficiency of the antenna, by increasing its effective height and its radiation resistance.
- the extractable strand 3 is not necessarily located outside the helical antenna 2; indeed, if the support mandrel is hollow, the strand extractable can be inside the mandrel 7, this which has the advantage of saving space additional.
- FIGS. 10 and 11 also show possible variants for the extractable strand 3.
- Figure 10 shows a variant usable in place of the tape 12 of the extractable strand 3 of the Figures 1, 2 and 9 (element 15 has not been shown in figure 10).
- metallic tape 12 instead of using metallic tape 12, uses a metallic conductive line 1012 deposited from so as to form a crenellated line on a film in one insulating material constituting part of the covering 13.
- the line 1012 is embedded in the covering 13.
- Such a structure shortens the effective length of the strand extractable 3, while maintaining an electrical length equal to half the wavelength. This allows decrease the space occupied by the extractable strand 3 to inside of the radiotelephone case 5.
- a metallic wire can be used 1112 having a crushed spring structure producing a tile effect without contact between the turns.
- the spring 1112 is also embedded in a coating 13 made of an insulating material, and the advantages it provides are identical to those obtained with line 1012.
- All these structures for the extractable strand 3 (ribbon 12, line 1012, spring 1112) reduce more or less the size of the extractable strand 3 in the radiotelephone case 5, which leaves more space for other essential elements of the latter.
- the insulating material constituting the covering 13 will be chosen at both to give strand 3 flexibility and to ensure sufficient mechanical strength for protect the metal part it contains.
- the upper metal part of strand 3, located immediately before the capacitive element 15, is connected to this last by an inductive structure 16. This allows improve the efficiency in the deployed position of the strand extractable 3.
- the helical antenna 2 as well as all the variants which have been described, can be made by metallic deposition on a support mandrel 7.
- the propeller can thus be obtained according to any method classic (metallization then screen printing, metallization then masking and photolithography, according to the method described in patent application EP-0 465 658, etc.).
- the propeller can be made on the external surface or internal of a mandrel made of an insulating material (when this mandrel is tubular).
- a mandrel made of an insulating material (when this mandrel is tubular).
- the metallization will be covered with a protective coating (not shown).
- the thickness of the mandrel wall preferably be low, to facilitate coupling possible capacitive with an extractable strand. Moreover, he it may be necessary to ensure the rigidity of the antenna helical thus obtained by inserting into the mandrel a any reinforcement piece of insulating material.
- the proposed method of making propeller 8 by metallization is advantageous because it makes the very compact helical antenna 2, which allows this last to occupy as little space as possible inside of the radiotelephone case 5.
- the reproducibility of the propeller thus produced is better compared to using a wound wire.
- the flexible film 20 can be constituted in particular from Kapton, Mylar or Duroid (registered trademarks).
- Her form constitutes the developed form of the final form that we want to give to the helical antenna.
- Film 20 has metallized vias for this purpose 22, and on its face opposite to that comprising the pattern 21, around the metallized vias 22, metallized pellets 23 (see figure 14B) intended to ensure continuity of the whole.
- the film 20 is assembled by welding on a mandrel (not shown) of desired shape (see figure 14B).
- This method has the advantage of being simpler work (depositing on a flat surface is more simple to realize that depositing on a surface of revolution), and allow to give to the antenna helical any shape (frustoconical, cylindrical, of rectangular section, etc ).
- the film 20 has a "tab" at its upper part 24 rectangular, with an area smaller than that of film 20, on which also shows a metallization pattern 25 comprising a full central part 26, surrounded by a spiraling 27.
- This tab 24 is intended to be folded down right angle when assembling film 20 on a form rectangular with rounded corners.
- the central part full 26 will then constitute the capacitive apex of the antenna helical, and spiraling the high inductance part.
- the tab 24 can be entirely metallized by solid metallization.
- the lower recess 28 of the film 20 will serve to make the interconnection tab with the coaxial cable Power.
- All the variants which have just been described for the antenna according to the invention comprise a supply by coaxial cable, this coaxial cable being connected on the one hand to the helical antenna, and on the other hand the radiotelephone transmitter / receiver with which the antenna according to the invention is related.
- the propeller 138 has two portions 138A and 138B.
- the 138A portion is consisting of a 1381 metallization, for example on the outer surface of the mandrel 7, of width and pitch variable so as to achieve a capacitive peak and a high inductance, in the same way as in figure 1.
- the part 138B includes a metallization 1382 on the surface exterior extending metallization 1381 but having a constant pitch and width, and metallization corresponding 1383 on the inner surface of the mandrel 7 (tubular) opposite metallization 1382 and wider than the latter.
- the electrical length of the portion 138A is about a quarter of the wavelength, as is that of portion 138B.
- the lower part of the helical antenna 132 serves thus both of radiating element (metallizations 1381 and 1382) and power line (1382 and 1383), the metallization 1383 corresponding to the ground conductor, that is to say to the external conductor of the coaxial supply, and the metallization 1382 corresponding to the core of the supply coaxial (when metallization 1381-1382 is located on the inner surface of the mandrel 7, the metallization 1383 is then of course at outside).
- the manufacturing method of the helical antenna according to Figures 13A and 13B can be one of the methods previously described. You can also make the antenna 132 by winding, although this is much less easy.
- an antenna according to the invention does not does not necessarily have an extractable strand. Indeed, such a strand is only necessary to allow the antenna to function whatever the conditions, and a such specification is not always formulated.
- Using a metallization method to manufacturing the helical antenna according to the invention allows besides easily making circuits as constants distributed or located at the top of the antenna, or additional impedance correction elements.
- the essential characteristic of the invention is to produce a variable pitch propeller and decreasing towards the top of the helical antenna, with a wire whose width decreases towards its top.
Description
- une antenne hélicoïdale quart d'onde disposée à la partie supérieure du boítier du radiotéléphone et alimentée par une ligne coaxiale couplée à l'émetteur/récepteur du dispositif radio, pour l'utilisation dans des conditions normales, l'hélice étant en général constituée d'un fil métallique bobiné autour d'un mandrin support en un matériau isolant,
- éventuellement, pour l'utilisation du dispositif radio dans des conditions fortement perturbées, un brin demi-onde extractible hors du boítier du dispositif radio, tel que, lorsqu'il se trouve en position rentrée à l'intérieur du boítier, il est pratiquement entièrement découplé de l'antenne hélicoïdale, et lorsqu'il se trouve en position déployée hors du boítier, il est couplé de manière capacitive à l'antenne hélicoïdale.
- la figure 1 représente, en coupe partielle, une portion d'un radiotéléphone au niveau de laquelle est installée une antenne selon l'invention,
- la figure 2 est une coupe transversale du brin extractible représenté en figure 1,
- la figure 3A représente de manière schématique l'antenne hélicoïdale de la figure 1, et la figure 3B la courbe correspondante donnant l'intensité en fonction de la hauteur depuis la base de l'hélice,
- la figure 4 est un schéma équivalent de l'antenne de la figure 1 lorsque le brin extractible est en position rentrée,
- la figure 5 est un schéma équivalent de l'antenne de la figure 1 lorsque le brin extractible est en position déployée,
- la figure 6A représente de manière schématique une antenne hélicoïdale classique, la figure 6B la courbe correspondante donnant l'intensité en fonction de la hauteur depuis la base de l'hélice, et la figure 6C le schéma équivalent de cette antenne,
- la figure 7A représente de manière schématique une antenne hélicoïdale à hélice à pas variable mais à largeur constante, non conforme à la présente invention, la figure 7B la courbe correspondante donnant l'intensité en fonction de la hauteur depuis la base de l'hélice, et la figure 7C le schéma équivalent de cette antenne,
- la figure 8A représente de manière schématique une autre antenne hélicoïdale à hélice à pas variable mais à largeur constante, non conforme à la présente invention, la figure 8B la courbe correspondante donnant l'intensité en fonction de la hauteur depuis la base de l'hélice, et la figure 8C le schéma équivalent de cette antenne,
- la figure 9 représente en vue de face et en coupe partielle le brin extractible de l'antenne de la figure 1,
- la figure 10 représente en vue de face et en coupe partielle une première variante du brin extractible de l'antenne de la figure 1, dans son revêtement de protection,
- la figure 11 représente en vue de face et en coupe partielle une deuxième variante du brin extractible de l'antenne de la figure 1, dans son revêtement de protection,
- la figure 12 représente en perspective une variante possible pour le brin extractible de la figure 9,
- la figure 13A représente en vue de face une variante possible pour l'antenne hélicoïdale de la figure 1,
- la figure 13B est une vue en coupe de la paroi de l'antenne hélicoïdale de la figure 13A,
- la figure 13C représente la courbe donnant l'intensité en fonction de la hauteur depuis la base de l'hélice de l'antenne de la figure 13A,
- la figure 14A montre ce qui est obtenu à l'issue d'une étape d'une méthode possible de fabrication d'une antenne hélicoïdale telle que celle de la figure 1,
- la figure 14B montre comment procéder à l'assemblage de ce qui a été obtenu à la figure 14A.
- C1 représente la capacité cumulée ajoutée d'une part par l'élément 15 au sommet 3A du brin extractible 3 et d'autre part par la partie capacitive du sommet 8A de l'hélice 8 ; la partie de C1 correspondant à l'élément 15 du brin 3 complète l'effet apporté par le sommet capacitif 8A de l'hélice 8,
- LH représente l'inductance élevée due au spiralage serré immédiatement avant le sommet 8A de l'hélice 8,
- LB représente l'inductance faible de la partie basse de l'hélice 8 ; LB est négligeable devant LH,
- C2 est une capacité parasite sur la partie basse de l'hélice 8 ; elle est négligeable du fait que LB est très petite devant LH.
Claims (23)
- Antenne (1) du type pour dispositif radio portable, comprenant notamment une antenne hélicoïdale (2) couplée par sa base à un émetteur/récepteur,
le pas de ladite hélice (8) en un matériau conducteur constituant ladite antenne hélicoïdale (2) étantvariable selon la hauteur de l'hélice, et décroissant depuis la base (8B) de ladite antenne hélicoïdale jusqu'à son sommet (8A), et la longueur électrique de ladite hélice (8) étantsensiblement égale à la moitié de la longueur d'onde,
caractérisée en ce que ladite hélice (8) est constituée d'un fil en un matériau conducteur dont la largeur décroít depuis la base de ladite antenne hélicoïdale jusqu'à son sommet. - Antenne selon la revendication 1 caractérisée en ce que les spires de ladite hélice (8) au sommet de ladite antenne hélicoïdale (2) sont en contact les unes avec les autres de manière à réaliser une surface continue de matériau conducteur, de sorte que ledit sommet (8A) est capacitif.
- Antenne selon la revendication 2 caractérisée en ce que les spires de ladite hélice immédiatement avant ledit sommet capacitif (8A) sont très resserrées sans être en contact les unes avec les autres de manière à réaliser une inductance plus élevée que celle du reste de ladite hélice (8).
- Antenne selon l'une des revendications 2 ou 3
caractérisée en ce qu'une portion inférieure de ladite hélice (8) est à pas constant. - Antenne selon l'une des revendications 1 à 4 caractérisée ladite hélice constitue à son sommet un circuit en
constantes réparties ou localisées. - Antenne selon l'une des revendications 1 à 5caractérisé en ce que ladite hélice (138) est constituée sur une partie de sa hauteur d'un élément coaxial (138B) comportant une âme centrale (1382) et un conducteur extérieur (1383), l'élément coaxial (138B) partant de la base de ladite hélice (138) et ayant une longueur électrique sensiblement égale au quart de la longueur d'onde, ladite âme (1382) se prolongeant jusqu'au sommet de ladite hélice (1381), et ledit élément coaxial (138B) étant relié au câble coaxial d'alimentation de ladite antenne hélicoïdale (132).
- Antenne selon l'une des revendications 1 à 6caractérisée en ce qu'elle comporte, outre ladite antenne hélicoïdale, un brin extractible (3) demi-onde monté sur ledit dispositif et adapté pour être couplé de manière capacitive à ladite antenne hélicoïdale (2) lorsqu'il se trouve en position déployée, et pour être découplé de ladite antenne hélicoïdale (2) lorsqu'il est en position rentrée, la direction dudit brin (3) étant sensiblement parallèle à l'axe (X) de ladite hélice (8).
- Antenne selon la revendication 7 caractérisée en ce que ledit brin extractible (3) est muni à sa partie supérieure (3A) d'une extrémité (15) en un matériau conducteur de longueur petite devant celle dudit brin (3).
- Antenne selon la revendication 8 caractérisée en ce que ladite extrémité métallique (15) s'étend orthogonalement à la direction dudit brin (3) et est reliée électriquement audit brin par une portion inductive (16), l'ensemble étant inséré dans un revêtement en un matériau isolant (13).
- Antenne selon l'une des revendications 7 à 11
caractérisée en ce que ledit brin (3) est constitué d'un ruban (12) en un matériau conducteur de section méplate, et est inséré dans un revêtement en un matériau isolant (13). - Antenne selon l'une des revendications 7 à 9
caractérisée en ce que ledit brin (3) est constitué d'un film souple en un matériau isolant (13) dans lequel est insérée une ligne conductrice formant une structure crénelée (1012). - Antenne selon l'une des revendications 7 à 9
caractérisée en ce que ledit brin (3) est constitué d'un film souple en un matériau isolant (13) dans lequel est inséré un fil conducteur (1112) ayant la forme d'un ressort écrasé. - Antenne selon l'une des revendications 7 à 12
caractérisée en ce que ledit brin extractible (3) est disposé à l'intérieur de l'hélice (8) formant ladite antenne hélicoïdale (2). - Antenne selon l'une des revendications 7 à 12
caractérisée en ce que ledit brin extractible (3) est disposé à l'extérieur de l'hélice (8) formant ladite antenne hélicoïdale (2). - Antenne selon l'une des revendications 7 à 14
caractérisée en ce que, lorsque ledit brin extractible (3) est en position rentrée, il est entièrement entouré, à l'intérieur dudit dispositif radio, d'un écran métallique de blindage (141). - Procédé de fabrication d'une antenne selon l'une des revendications 1 à 15 caractérisé en ce que ladite hélice (8) est obtenue par dépôt métallique sur la surface extérieure d'un mandrin support (7) en un matériau isolant.
- Procédé selon la revendication 16 caractérisé en ce que ledit dépôt métallique est recouvert d'un matériau de protection.
- Procédé de fabrication d'une antenne selon l'une des revendications 1 à 15 caractérisé en ce que ladite hélice est obtenue par dépôt métallique sur la surface intérieure d'un mandrin support tubulaire en un matériau isolant.
- Procédé selon la revendication 18 caractérisé en ce que ledit mandrin support est de faible épaisseur.
- Procédé de fabrication d'une antenne selon l'une des revendications 1 à 15 caractérisé en ce que ladite hélice (8) est obtenue par dépôt de bandes métalliques (21) sur un film souple (20) sensiblement plan correspondant à la forme développée de la forme définitive à donner à l'hélice, puis assemblage par soudure de deux extrémités opposées (20C, 20D) dudit film souple (20) pour obtenir une forme hélicoïdale du dépôt (21) effectué et une continuité électrique.
- Procédé selon l'une des revendications 16 à 20 caractérisé en ce que ledit mandrin est cylindrique, tronconique ou parallélépipédique avec des bords arrondis.
- Dispositif radio portable caractérisé en ce qu'il comporte une antenne (1) selon l'une des revendications 1 à 15, ladite antenne hélicoïdale (2) étant disposée à la partie supérieure d'un boítier (5) appartenant audit dispositif.
- Dispositif radio portable caractérisé en ce qu'il comporte une antenne (1) selon l'une des revendications 7 à 15, ladite antenne hélicoïdale (2) étant disposée à la partie supérieure d'un boítier (5) appartenant audit dispositif, et ledit brin extractible (3) se trouvant inséré dans un logement (14) appartenant audit boítier (5) lorsqu'il est en position rentrée, et émergeant à la partie supérieure dudit boítier (5) lorsqu'il est en position déployée.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9312226 | 1993-10-14 | ||
FR9312226A FR2711277B1 (fr) | 1993-10-14 | 1993-10-14 | Antenne du type pour dispositif radio portable, procédé de fabrication d'une telle antenne et dispositif radio portable comportant une telle antenne. |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0649181A1 EP0649181A1 (fr) | 1995-04-19 |
EP0649181B1 true EP0649181B1 (fr) | 2003-04-23 |
Family
ID=9451820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94402293A Expired - Lifetime EP0649181B1 (fr) | 1993-10-14 | 1994-10-12 | Antenne du type pour dispositif radio portable, procédé de fabrication d'une telle antenne et dispositif radio portable comportant une telle antenne |
Country Status (10)
Country | Link |
---|---|
US (1) | US5668559A (fr) |
EP (1) | EP0649181B1 (fr) |
JP (1) | JPH07176929A (fr) |
AT (1) | ATE238614T1 (fr) |
AU (1) | AU683907B2 (fr) |
CA (1) | CA2118082A1 (fr) |
DE (1) | DE69432548T2 (fr) |
FI (1) | FI944798A (fr) |
FR (1) | FR2711277B1 (fr) |
NZ (1) | NZ264417A (fr) |
Families Citing this family (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5709832A (en) * | 1995-06-02 | 1998-01-20 | Ericsson Inc. | Method of manufacturing a printed antenna |
AU708520B2 (en) * | 1995-06-02 | 1999-08-05 | Ericsson Inc. | Printed monopole antenna |
AU5955396A (en) * | 1995-06-02 | 1996-12-18 | Ericsson Inc. | Printed antenna having electrical length greater than physic al length |
US5764197A (en) * | 1995-06-20 | 1998-06-09 | Murata Manufacturing Co., Ltd. | Chip antenna |
CA2191805A1 (fr) * | 1995-12-15 | 1997-06-16 | Jason Paul Demont | Appareil et methode de transmission de signaux |
US5678201A (en) * | 1996-02-01 | 1997-10-14 | Motorola, Inc. | Antenna assembly with balun and tuning element for a portable radio |
FI106895B (fi) * | 1996-02-16 | 2001-04-30 | Filtronic Lk Oy | Dielektrisen levyn ja heliksiantennin yhdistetty rakenne |
JP3297601B2 (ja) * | 1996-04-25 | 2002-07-02 | 京セラ株式会社 | 複合アンテナ |
JPH09294013A (ja) * | 1996-04-26 | 1997-11-11 | Matsushita Electric Ind Co Ltd | アンテナ装置 |
JP3098430B2 (ja) * | 1996-08-30 | 2000-10-16 | 埼玉日本電気株式会社 | 携帯無線機用ヘリカルアンテナ |
DE19700356A1 (de) * | 1997-01-08 | 1998-07-16 | Siemens Ag | Funkgerät |
US5808586A (en) * | 1997-02-19 | 1998-09-15 | Motorola, Inc. | Side-by-side coil-fed antenna for a portable radio |
JP3314654B2 (ja) * | 1997-03-14 | 2002-08-12 | 日本電気株式会社 | ヘリカルアンテナ |
GB2323476B (en) * | 1997-03-20 | 2002-01-16 | David Ganeshmoorthy | Communication antenna and equipment |
CA2284673A1 (fr) * | 1997-03-27 | 1998-10-08 | Qualcomm Incorporated | Antenne et reseau d'alimentation d'antenne |
US5923305A (en) * | 1997-09-15 | 1999-07-13 | Ericsson Inc. | Dual-band helix antenna with parasitic element and associated methods of operation |
WO1999027608A1 (fr) * | 1997-11-22 | 1999-06-03 | Nathan Cohen | Antenne conformable cylindrique sur substrat plan |
FI113814B (fi) * | 1997-11-27 | 2004-06-15 | Nokia Corp | Monilankaiset helix-antennit |
FI111884B (fi) | 1997-12-16 | 2003-09-30 | Filtronic Lk Oy | Kahden taajuuden heliksiantenni |
JP3041520B2 (ja) | 1998-01-19 | 2000-05-15 | 株式会社トーキン | アンテナ |
US6456259B1 (en) | 1998-01-29 | 2002-09-24 | Siemens Aktiengesellschaft | Radio equipment |
JPH11330833A (ja) * | 1998-05-21 | 1999-11-30 | Kyocera Corp | アンテナ |
USD424063S (en) * | 1998-06-15 | 2000-05-02 | Harada Kogyo Kubushiki Kaisha | Film antenna for a vehicle |
USD434752S (en) * | 1998-06-15 | 2000-12-05 | Harada Kogyo Kabushiki Kaisha | Film antenna for a vehicle |
US6336036B1 (en) | 1998-07-08 | 2002-01-01 | Ericsson Inc. | Retractable dual-band tapped helical radiotelephone antennas |
US6107970A (en) * | 1998-10-07 | 2000-08-22 | Ericsson Inc. | Integral antenna assembly and housing for electronic device |
US6255999B1 (en) | 1999-04-28 | 2001-07-03 | The Whitaker Corporation | Antenna element having a zig zag pattern |
WO2000065686A1 (fr) * | 1999-04-28 | 2000-11-02 | The Whitaker Corporation | Element d'antenne a configuration en zigzag |
JP2000341024A (ja) | 1999-05-13 | 2000-12-08 | K Cera Inc | ヘリカルアンテナ、その製造装置及び製造方法 |
SE516466C2 (sv) * | 1999-06-17 | 2002-01-15 | Moteco Ab | Antennanordning för flera frekvensband |
AU6041700A (en) * | 1999-07-01 | 2001-01-22 | Avantego Ab | Antenna arrangement and method |
US6781549B1 (en) | 1999-10-12 | 2004-08-24 | Galtronics Ltd. | Portable antenna |
JP3503556B2 (ja) * | 2000-02-04 | 2004-03-08 | 株式会社村田製作所 | 表面実装型アンテナおよびそのアンテナを装備した通信装置 |
JP2001345628A (ja) * | 2000-06-02 | 2001-12-14 | Mitsumi Electric Co Ltd | ヘリカルアンテナおよびその製造方法、並びにその共振周波数調整方法 |
FR2814286B1 (fr) * | 2000-09-15 | 2004-05-28 | France Telecom | Antenne helice a brins de largeur variable |
FR2814285A1 (fr) | 2000-09-15 | 2002-03-22 | France Telecom | Antenne helicoidale a pas variable, et procede correspondant |
US6339409B1 (en) * | 2001-01-24 | 2002-01-15 | Southwest Research Institute | Wide bandwidth multi-mode antenna |
EP1239539A3 (fr) * | 2001-03-02 | 2003-11-05 | Nokia Corporation | Antenne |
GB0105251D0 (en) * | 2001-03-02 | 2001-04-18 | Nokia Mobile Phones Ltd | Antenna |
FR2828022B1 (fr) * | 2001-07-27 | 2003-11-21 | Framatome Connectors Int | Ensemble integre comportant une antenne et un commutateur |
US6431712B1 (en) * | 2001-07-27 | 2002-08-13 | Gentex Corporation | Automotive rearview mirror assembly including a helical antenna with a non-circular cross-section |
EP1428292A4 (fr) * | 2001-09-07 | 2004-09-01 | Andrew Corp | Antenne de station de base a large bande et reseau d'antennes |
GB2380323B (en) * | 2001-09-29 | 2003-11-05 | Motorola Inc | Antenna for use in radio communications |
US7372427B2 (en) | 2003-03-28 | 2008-05-13 | Sarentel Limited | Dielectrically-loaded antenna |
GB2399948B (en) | 2003-03-28 | 2006-06-21 | Sarantel Ltd | A dielectrically-loaded antenna |
FR2855883B1 (fr) * | 2003-06-03 | 2005-08-26 | Cit Alcatel | Dispositif optoelectronique integre comportant un modulateur a electroabsorption et un element electronique de commande du modulateur |
US7183998B2 (en) * | 2004-06-02 | 2007-02-27 | Sciperio, Inc. | Micro-helix antenna and methods for making same |
US7126557B2 (en) * | 2004-10-01 | 2006-10-24 | Southwest Research Institute | Tapered area small helix antenna |
US7301506B2 (en) * | 2005-02-04 | 2007-11-27 | Shure Acquisition Holdings, Inc. | Small broadband helical antenna |
TWI337426B (en) * | 2007-03-20 | 2011-02-11 | Wistron Neweb Corp | Portable electronic device with function of receiving and radiating rf signal and multi-frenquency antenna thereof |
US8692725B2 (en) | 2007-12-20 | 2014-04-08 | Harada Industry Co., Ltd. | Patch antenna device |
JP4524318B2 (ja) | 2008-05-27 | 2010-08-18 | 原田工業株式会社 | 車載用ノイズフィルタ |
US8248323B2 (en) * | 2008-05-30 | 2012-08-21 | Motorola Solutions, Inc. | Antenna and method of forming same |
JP5114325B2 (ja) * | 2008-07-08 | 2013-01-09 | 原田工業株式会社 | 車両用ルーフマウントアンテナ装置 |
JP4832549B2 (ja) * | 2009-04-30 | 2011-12-07 | 原田工業株式会社 | 空間充填曲線を用いる車両用アンテナ装置 |
JP4955094B2 (ja) * | 2009-11-02 | 2012-06-20 | 原田工業株式会社 | パッチアンテナ |
WO2012096355A1 (fr) * | 2011-01-12 | 2012-07-19 | 原田工業株式会社 | Dispositif d'antenne |
JP5274597B2 (ja) | 2011-02-15 | 2013-08-28 | 原田工業株式会社 | 車両用ポールアンテナ |
JP5654917B2 (ja) | 2011-03-24 | 2015-01-14 | 原田工業株式会社 | アンテナ装置 |
CN102299401B (zh) * | 2011-05-25 | 2013-07-03 | 北京理工大学 | 一种信号干扰天线设备 |
MX2014004290A (es) * | 2011-10-12 | 2014-07-24 | Entropic Communications Inc | Antena continua distribuida. |
USD726696S1 (en) | 2012-09-12 | 2015-04-14 | Harada Industry Co., Ltd. | Vehicle antenna |
US9893715B2 (en) | 2013-12-09 | 2018-02-13 | Shure Acquisition Holdings, Inc. | Adaptive self-tunable antenna system and method |
WO2016056935A1 (fr) * | 2014-10-07 | 2016-04-14 | Llc "Topcon Positioning Systems" | Antenne hélicoïdale à impédance formant un diagramme de directivité en п |
US9666938B2 (en) | 2015-06-19 | 2017-05-30 | Motorola Solutions, Inc. | Antenna structure for multiband applications |
US11258181B2 (en) | 2019-12-20 | 2022-02-22 | Eagle Technology, Llc | Systems and methods for providing a high gain space deployable helix antenna |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR810325A (fr) * | 1935-12-10 | 1937-03-19 | Cablerie E Charbonnet | Antenne verticale spiralée pour télégraphie, téléphonie sans fil ou télévision |
BE534531A (fr) * | 1952-04-08 | 1900-01-01 | ||
US2982964A (en) * | 1957-03-26 | 1961-05-02 | Internat Telephone & Telegraph | Adjustable tuning device and antenna using same |
US3852759A (en) * | 1960-04-01 | 1974-12-03 | Itt | Broadband tunable antenna |
DE1183143B (de) * | 1962-06-01 | 1964-12-10 | Rohde & Schwarz | Wendelantenne mit Reflektor |
US3283332A (en) * | 1964-08-24 | 1966-11-01 | Nussbaum Milton | "null" conical helix |
CH499888A (fr) * | 1967-12-15 | 1970-11-30 | Onera (Off Nat Aerospatiale) | Antenne à un seul conducteur enroulé hélicoïdalement de dimensions réduites, et procédé pour sa fabrication |
US4121218A (en) * | 1977-08-03 | 1978-10-17 | Motorola, Inc. | Adjustable antenna arrangement for a portable radio |
US4169267A (en) * | 1978-06-19 | 1979-09-25 | The United States Of America As Represented By The Secretary Of The Air Force | Broadband helical antennas |
HU182355B (en) * | 1981-07-10 | 1983-12-28 | Budapesti Radiotechnikai Gyar | Aerial array for handy radio transceiver |
JPS63173934U (fr) * | 1987-04-30 | 1988-11-11 | ||
US4868576A (en) * | 1988-11-02 | 1989-09-19 | Motorola, Inc. | Extendable antenna for portable cellular telephones with ground radiator |
GB9105586D0 (en) * | 1991-03-16 | 1991-05-01 | Antenna Products Ltd | Radio antennas |
DE59209381D1 (de) * | 1991-04-30 | 1998-07-30 | Siemens Ag | Kompaktes Funkgerät, insbesondere Handfunkgerät, mit versenkbarer oder umklappbarer Stabantenne |
CA2061743C (fr) * | 1992-02-24 | 1996-05-14 | Peter Charles Strickland | Antenne helicoidale a charge terminale |
US5335366A (en) * | 1993-02-01 | 1994-08-02 | Daniels John J | Radiation shielding apparatus for a radio transmitting device |
-
1993
- 1993-10-14 FR FR9312226A patent/FR2711277B1/fr not_active Expired - Fee Related
-
1994
- 1994-09-08 NZ NZ264417A patent/NZ264417A/en unknown
- 1994-09-12 AU AU72917/94A patent/AU683907B2/en not_active Ceased
- 1994-10-12 AT AT94402293T patent/ATE238614T1/de not_active IP Right Cessation
- 1994-10-12 EP EP94402293A patent/EP0649181B1/fr not_active Expired - Lifetime
- 1994-10-12 DE DE69432548T patent/DE69432548T2/de not_active Expired - Lifetime
- 1994-10-12 FI FI944798A patent/FI944798A/fi unknown
- 1994-10-13 US US08/322,799 patent/US5668559A/en not_active Expired - Lifetime
- 1994-10-13 CA CA002118082A patent/CA2118082A1/fr not_active Abandoned
- 1994-10-14 JP JP6249584A patent/JPH07176929A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2711277B1 (fr) | 1995-11-10 |
FI944798A0 (fi) | 1994-10-12 |
NZ264417A (en) | 1996-10-28 |
DE69432548T2 (de) | 2004-03-04 |
AU683907B2 (en) | 1997-11-27 |
FI944798A (fi) | 1995-04-15 |
CA2118082A1 (fr) | 1995-04-15 |
JPH07176929A (ja) | 1995-07-14 |
DE69432548D1 (de) | 2003-05-28 |
US5668559A (en) | 1997-09-16 |
FR2711277A1 (fr) | 1995-04-21 |
ATE238614T1 (de) | 2003-05-15 |
AU7291794A (en) | 1995-05-04 |
EP0649181A1 (fr) | 1995-04-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0649181B1 (fr) | Antenne du type pour dispositif radio portable, procédé de fabrication d'une telle antenne et dispositif radio portable comportant une telle antenne | |
EP1407512B1 (fr) | Antenne | |
FR2797352A1 (fr) | Antenne a empilement de structures resonantes et dispositif de radiocommunication multifrequence incluant cette antenne | |
EP0667984B1 (fr) | Antenne fil-plaque monopolaire | |
FR2778272A1 (fr) | Dispositif de radiocommunication et antenne bifrequence realisee selon la technique des microrubans | |
EP2422403B9 (fr) | Antenne multiple large bande a faible profil | |
FR2739498A1 (fr) | Assemblage d'antenne pour dispositif de communication sans fil | |
FR2730094A1 (fr) | Antenne radio | |
FR2597266A1 (fr) | Antenne a large bande | |
EP0308935B1 (fr) | Antenne bracelet pour récepteur radioélectrique intégré dans une montre | |
EP1540768B1 (fr) | Antenne helicoidale a large bande | |
WO2000055940A1 (fr) | Antenne demontable, a charge capacitive, de type fouet et procede de fabrication d'un segment rayonnant d'une telle antenne | |
FR3003699A1 (fr) | Antenne helice compacte a polarisation circulaire | |
EP3850707B1 (fr) | Antenne en segment de spirale | |
EP1025620B1 (fr) | Cable coaxial rayonnant | |
EP1530815A1 (fr) | Antenne de faible volume | |
WO2002037606A1 (fr) | Antenne multibande | |
FR2519476A1 (fr) | Dispositif d'alimentation d'un element rayonnant | |
BE521287A (fr) | ||
FR2616274A1 (fr) | Antenne pour la reception ou l'emission d'ondes electromagnetiques, notamment pour autoradio | |
WO2007051931A2 (fr) | Antenne miniaturisee pour utilisation grand public | |
FR2649542A1 (fr) | Antenne destinee a etre fixee sur une paroi dielectrique | |
FR2825518A1 (fr) | Antenne a plaque | |
FR2958803A1 (fr) | Antenne bibande | |
FR2798001A1 (fr) | Filtre dielectrique duplexeur |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE ES FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19950819 |
|
17Q | First examination report despatched |
Effective date: 19980804 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ALCATEL |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE ES FR GB IT LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030423 Ref country code: AT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030423 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 20030423 |
|
REF | Corresponds to: |
Ref document number: 69432548 Country of ref document: DE Date of ref document: 20030528 Kind code of ref document: P |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030723 |
|
NLV1 | Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031030 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20031031 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040126 |
|
BERE | Be: lapsed |
Owner name: *ALCATEL Effective date: 20031031 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: CD |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: 732E Free format text: REGISTERED BETWEEN 20131114 AND 20131120 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20131021 Year of fee payment: 20 Ref country code: FR Payment date: 20131022 Year of fee payment: 20 Ref country code: GB Payment date: 20131021 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: IT Payment date: 20131030 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: GC Effective date: 20140717 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69432548 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 69432548 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20141011 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: RG Effective date: 20141016 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20141011 |